|Publication number||US6209337 B1|
|Application number||US 09/156,236|
|Publication date||Apr 3, 2001|
|Filing date||Sep 18, 1998|
|Priority date||Sep 19, 1997|
|Publication number||09156236, 156236, US 6209337 B1, US 6209337B1, US-B1-6209337, US6209337 B1, US6209337B1|
|Inventors||William F. Edwards|
|Original Assignee||William F. Edwards|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (11), Referenced by (38), Classifications (15), Legal Events (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This application is entitled to the benefit of the filing date of provisional application No. 60/059,567 filed on Sep. 19, 1997. The present invention relates to a water purification system for extracting and purifying water from ambient air.
Various processes for purifying water exist in the prior art. Examples of such processes include filtration, anion/cation exchange, distillation and reverse osmosis. Each process is often supplemented with chlorination, oxidation, ultraviolet radiation and similar treatment methods. However, each of the aforementioned processes has several disadvantages. Filtering employs a filter medium that must be cleaned or periodically replaced which is expensive and laborious. Ion exchange resin is susceptible to destruction by other water treatment chemicals especially chlorine. Reverse osmosis is effective in removing most contaminants but the process requires a significant amount of raw input water to produce a predetermined amount of purified water.
Distillation involves boiling water and condensing the steam produced thereby. Because most of the dissolved solids remain with the liquid, the condensed steam is essentially pure. However, many volatile organics such as pesticides will vaporize with the steam and will be condensed therewith. Additionally, distillation requires a boiler or a similar steam producing device which is expensive to operate and maintain.
The present invention overcomes each of the disadvantages enumerated above by providing a device that condenses moisture from ambient air and collects such moisture within a storage reservoir. The storage reservoir includes a dispensing spigot in fluid communication therewith allowing the collected condensate to be dispensed into an external container. Although similar devices have been developed, the present invention includes an ultraviolet light unit having a sight port and a light cleaning means to ensure proper and efficient operation of the device.
The present invention relates to a device for conveniently purifying and collecting water vapor entrained within ambient air. The device comprises a cabinet member having an air vent on a side wall thereof through which ambient air is delivered to the cabinet interior. Within the cabinet is an air intake fan, a condenser, a collection reservoir, a main reservoir, an ultraviolet light unit and a compressor. Ambient air is drawn through a filtering device and delivered to the condenser wherein moisture entrapped within the ambient air is condensed. The resulting moisture drips into the collection reservoir, is sterilized in an ultraviolet unit and is transferred to the main storage reservoir from which it may be selectively dispensed to an external container. It is therefore an object of the present invention to provide a portable water purification and collection device that provides a complete, multi stage treatment process for removing particulates, organics and inorganics from a water source.
It is yet another object of the present invention to provide a water purification and collection device that provides an inexpensive means for purifying a water source.
It is yet another object of the present invention to provide a water purification and collection device that produces sterile, purified water from ambient air. Other objects, features and advantages of the present invention will become readily apparent from the following detailed description of the preferred embodiment when considered with the attached drawings and the appended claims.
FIG. 1 depicts the internal components according to the present invention.
FIG. 2 depicts a front exterior view of the cabinet according to the present invention.
FIG. 3 depicts the ultraviolet unit according to the present invention.
FIG. 4 correlates operational data for the present invention to various ambient conditions.
Referring now to FIGS. 1 through 4, the present invention relates to a water collection and purification device, indicated generally at 10. The device includes a cabinet member 12 having a plurality of side walls and an interior chamber. One of the side walls may be removable or pivotable to provide selective access to the interior chamber components that are described in more detail below. A first side wall includes a plurality of louvers 18A formed on a vent cover 18 for providing ambient air to the cabinet interior chamber. The device also includes a plurality of exhaust ducts 24 on one or more side walls thereof for allowing air to flow from the cabinet interior to the atmosphere.
Received within the cabinet interior chamber and proximal the vent is a fan 14 for inducing air flow from the atmosphere to the interior chamber. Between the fan and the vent is an electrostatic filter 31 for removing various particulates from the incoming air. The electrostatic filter 31 is a conventional item and includes fibrous, electrically charged filter media for attracting oppositely charged particulates entrained within the ambient air. The filter media is sufficiently charged to also attract substantially neutral particles to ensure that substantially all particulate matter within the incoming air is removed prior to condensation being produced.
Disposed between the filter and fan is a condenser unit 20 having refrigerant coils therein 21 across which ambient air is circulated by the fan. A refrigerant compressor 29 is received within the cabinet and is in fluid communication with the condenser coils for circulating a refrigerant therethrough. Accordingly, the compressor compresses and circulates the refrigerant through the coils to cool ambient air flowing thereacross to a temperature sufficient to produce condensate. The resulting condensate drips into a collection reservoir 22 and ultimately to a UV light unit 27 via conduit 23.
Referring now to FIG. 3, the conventional ultraviolet light unit 27 according to the present invention is depicted in more detail. The unit includes a hollow, substantially cylindrical housing 44 having a condensate input 45 and condensate output 46. The condensate enters the housing from the collection reservoir and flows through an annular space 35 formed between a quartz sleeve 40 and the UV light unit housing outer wall 41. The quartz sleeve includes a germicidal lamp therein for emitting ultraviolet rays that immediately destroy microorganisms exposed thereto. Annular discs 42 surround the quartz sleeve for inducing turbulent condensate flow through the housing to ensure that the microbiological organisms are thoroughly exposed to ultraviolet radiation. A sight port 43 on the housing enables visual observation of the lamp operation and condition. An extendable and retractable rod 1 is attached to the annular discs and includes a knob 2 on an end thereof that extends from an end of the ultraviolet light unit housing. By reciprocating the knob towards and away from the housing, a user may dislodge debris from the quartz sleeve without disassembling the housing or otherwise interrupting the purification process. The above described device is conventional and may include the product sold under the mane SANITRON ™, ATLANTIC ULTRAVIOLET or a similar equivalent.
Upon exiting the ultraviolet light unit, the condensate flows to a main reservoir 25. The main reservoir 25 includes a discharge pipe 33 in fluid communication with a spigot 34 mounted exteriorly of the cabinet, preferably on a side wall thereof, to dispense the purified condensate to an external container. The main reservoir may also include a float valve mechanism (not pictured) for disabling flow to the spigot upon the level in the reservoir diminishing below a predetermined level.
FIG. 4 provides a chart interrelating various ambient conditions to the approximate number of hours required to produce a predetermined volume of water. Also included is the approximate energy cost to produce a given volume of water as calculated at an assumed cost of nine cents per kilowatt hour. Accordingly, the system according to the present invention can be operated at optimal temperatures and/or humidity to minimize associated energy costs and to increase the efficiency of the process. Accordingly, conventional automatic temperature and humidity sensing controls may be electrically integrated with the system to automatically operate the various components only during optimal conditions. The device may also include a plurality of photo voltaic cells mounted on the cabinet or in a remote location to provide power to the various components via a light source.
The present invention is not to be limited to the exact details of construction and arrangement of parts shown and described. In addition, the size, shape and materials of construction may be varied without departing from the spirit of the present invention.
Although there has been shown and described the preferred embodiment of the present invention, it will be readily apparent to those skilled in the art that modifications may be made thereto which do not exceed the scope of the appended claims. Therefore, the scope of the invention is only to be limited by the following claims.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US3035418||Apr 24, 1959||May 22, 1962||Wright Francis X||Self-contained water-supply and cooling unit|
|US4255937||Nov 22, 1978||Mar 17, 1981||Richard Ehrlich||Atmospheric water collector|
|US5149446||Jan 30, 1991||Sep 22, 1992||Reidy James J||Potable water generator|
|US5203989||Jan 30, 1992||Apr 20, 1993||Reidy James J||Portable air-water generator|
|US5259203||May 14, 1992||Nov 9, 1993||Engel Daniel R||Apparatus and method for extracting potable water from atmosphere|
|US5301516||Feb 11, 1993||Apr 12, 1994||Forrest Poindexter||Potable water collection apparatus|
|US5366705||Jun 8, 1993||Nov 22, 1994||James J. Reidy||Gravity feed ultraviolet liquid sterilization system|
|US5517829||May 3, 1994||May 21, 1996||Michael; Charles L.||Apparatus for producing filtered drinking water|
|US5701749 *||Apr 30, 1996||Dec 30, 1997||Zakryk; John M.||Water collection and dispensing machine|
|US5729981 *||Oct 10, 1994||Mar 24, 1998||Markus; Wolfgang||Method and apparatus for extracting water|
|US5768905 *||Nov 18, 1996||Jun 23, 1998||Samsung Electronics Co., Ltd.||Refrigerator having a water dispenser and a water sterilizer|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US6644060 *||Feb 21, 2000||Nov 11, 2003||Dil Sham Ventures||Apparatus for extracting potable water from the environment air|
|US6684648 *||Feb 21, 2001||Feb 3, 2004||Fakieh Research & Development Center||Apparatus for the production of freshwater from extremely hot and humid air|
|US7089763||Feb 25, 2002||Aug 15, 2006||Worldwide Water, L.L.C.||Portable, potable water recovery and dispensing apparatus|
|US7135106||Apr 8, 2004||Nov 14, 2006||Aquagenex Inc.||Portable water purifier|
|US7272947||Sep 6, 2005||Sep 25, 2007||Everest Water, Ltd.||Water producing method and apparatus|
|US7373787||Aug 11, 2006||May 20, 2008||Worldwide Water, L.L.C.||Portable, potable water recovery and dispensing apparatus|
|US7540167 *||Jul 5, 2005||Jun 2, 2009||Dean Murphy||Condensed water production system|
|US7886547||May 28, 2008||Feb 15, 2011||Sullivan Shaun E||Machines and methods for removing water from air|
|US7886557||Aug 3, 2007||Feb 15, 2011||Everest Water, Ltd.||Water producing method and apparatus with additive control system|
|US7954335||Apr 3, 2009||Jun 7, 2011||Water Generating Systems LLC||Atmospheric water harvesters with variable pre-cooling|
|US8627673||Mar 25, 2008||Jan 14, 2014||Water Generating Systems LLC||Atmospheric water harvesters|
|US9561451||Oct 8, 2014||Feb 7, 2017||Skywell, Llc||Atmospheric water generator system and method|
|US20040229256 *||Mar 17, 2004||Nov 18, 2004||Theodor Funck||Method and device for diagnostic investigation of biological samples|
|US20060005561 *||Jul 5, 2005||Jan 12, 2006||Dean Murphy||Condensed water production system|
|US20060059922 *||Sep 6, 2005||Mar 23, 2006||Anderson Rae T||Water producing method and apparatus|
|US20070039345 *||Aug 11, 2006||Feb 22, 2007||Worldwide Water, L.L.C.||Portable, potable water recovery and dispensing apparatus|
|US20080011354 *||Jul 9, 2007||Jan 17, 2008||Kurt Niece||Water Processing System and Method|
|US20080022694 *||Aug 3, 2007||Jan 31, 2008||Rae Anderson||Water producing method and apparatus with additive control system|
|US20080168789 *||Aug 20, 2004||Jul 17, 2008||Vital Earth Technologies Pty Limited||Method and Apparatus For Condensing Water From Ambient Air|
|US20080190494 *||Jan 29, 2008||Aug 14, 2008||Kurt Niece||Water Processing System and Method|
|US20080245092 *||May 20, 2008||Oct 9, 2008||Forsberg Francis C||Portable, potable water recovery and dispensing apparatus|
|US20090077992 *||Sep 24, 2007||Mar 26, 2009||Anderson Rae Ray T||Water producing method and apparatus|
|US20090241580 *||Mar 25, 2008||Oct 1, 2009||Hill James W||Atmospheric Water Harvesters|
|US20090293513 *||May 28, 2008||Dec 3, 2009||Sullivan Shaun E||Machines and Methods for Removing Water From Air|
|US20090321435 *||Jun 30, 2008||Dec 31, 2009||Max Michael D||Water Handling System|
|US20100059358 *||Apr 21, 2008||Mar 11, 2010||Freedom Water Company Ltd.||Potable water distiller|
|US20100307181 *||Jun 9, 2009||Dec 9, 2010||Max Michael D||Atmospheric moisture harvesting|
|US20110048039 *||Jan 13, 2010||Mar 3, 2011||Water-Gen Ltd.||System and method of water supply production and management in vehicles|
|US20130056473 *||Sep 1, 2011||Mar 7, 2013||Larry Hofer||Water Supply for a Vehicle|
|USRE42907 *||Dec 12, 2002||Nov 15, 2011||Osman Akkad||Device for conditioning water produced by air conditioning or environmental dehumidification apparatuses or plants|
|CN101730662B||Apr 21, 2008||Oct 31, 2012||自由供水有限公司||Potable water distiller|
|EP1478891A1 *||Feb 25, 2002||Nov 24, 2004||Worldwide Water, L.L.C.||Portable, potable water recovery and dispensing apparatus|
|EP1478891A4 *||Feb 25, 2002||Jun 29, 2005||Worldwide Water L L C||Portable, potable water recovery and dispensing apparatus|
|WO2002094725A2 *||May 25, 2001||Nov 28, 2002||Aditya Shyam Sunder Goenka||A method and device for recovery of water from the atmospheric air|
|WO2002094725A3 *||May 25, 2001||Feb 13, 2003||Aditya Shyam Sunder Goenka||A method and device for recovery of water from the atmospheric air|
|WO2006107276A2 *||Apr 3, 2006||Oct 12, 2006||Aqua Active Singapore Pte Ltd||Dehumidifier and sterilised water generating apparatus|
|WO2006107276A3 *||Apr 3, 2006||Jun 14, 2007||Aqua Active Singapore Pte Ltd||Dehumidifier and sterilised water generating apparatus|
|WO2008128354A1 *||Apr 21, 2008||Oct 30, 2008||Freedom Water Company Ltd.||Potable water distiller|
|U.S. Classification||62/272, 62/285, 62/264, 62/93|
|International Classification||A61L2/10, C02F1/32, C02F9/00, F25D21/14|
|Cooperative Classification||A61L2/10, F25D21/14, C02F1/32, C02F2201/3223, C02F9/005|
|European Classification||C02F9/00B, A61L2/10|
|Oct 20, 2004||REMI||Maintenance fee reminder mailed|
|Apr 4, 2005||LAPS||Lapse for failure to pay maintenance fees|
|May 31, 2005||FP||Expired due to failure to pay maintenance fee|
Effective date: 20050403